P243D – BMW DTC

BMW DTC P243D – Particulate Filter Regeneration Duration, Bank 2

DTC P243D meaning on BMW

DTC P243D on a BMW refers to an issue related to the Particulate Filter Regeneration Duration on Bank 2. This diagnostic trouble code indicates that there is a problem with the regeneration process of the particulate filter on the second bank of the engine.

BMW DTC P243D symptoms

Symptoms of DTC P243D on a BMW may include:

  • Check Engine Light illuminated
  • Reduced engine performance
  • Increased fuel consumption
  • Excessive exhaust smoke

BMW DTC P243D causes

Common causes of DTC P243D on a BMW include:

  • Malfunctioning particulate filter
  • Issues with the regeneration system
  • Excessive soot accumulation in the filter
  • Problems with the exhaust gas temperature sensors

BMW DTC P243D seriousness

DTC P243D should not be ignored as it can lead to further damage to the engine and emission system if left unresolved. Continued driving with this fault may result in increased emissions and potential engine performance issues.

How to diagnose DTC P243D on BMW

To diagnose DTC P243D on a BMW, a mechanic may perform the following steps:

  • Use a diagnostic scanner to retrieve the fault codes
  • Inspect the particulate filter for damage or clogging
  • Check the regeneration system components for proper operation
  • Test the exhaust gas temperature sensors

How to fix DTC P243D on BMW

To fix DTC P243D on a BMW, the following steps may be taken:

  • Clean or replace the particulate filter if necessary
  • Repair or replace any faulty regeneration system components
  • Address any issues with the exhaust gas temperature sensors
  • Clear the fault codes and reset the Check Engine Light

How to erase DTC P243D on BMW

To erase DTC P243D on a BMW, a diagnostic scanner can be used to clear the fault codes stored in the vehicle’s ECU. Once the codes are cleared, the Check Engine Light should turn off. It is important to ensure that the underlying issue causing the fault code has been addressed before clearing the code.

Recommended tools & DTC Scanners for BMW

Best Diagnostic App for modern BMWs: BimmerLink

Recommended Bluetooth adapter for Bimmerlink: OBDLink CX

Cable adapter for Bimmerlink: Enet Cable USB Type C

For older BMWs we recommend: Autel AutoLink AL319 (2024 version)

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

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